Swift SpriteKit局部变量

Question

我有一个名为的局部变量bomb tower.代码如下:

if checkMark.contains(touchLocation) {
        let bombTowerLevel1 = SKSpriteNode(imageNamed: "bomb tower trial 2")
        bombTowerLevel1.name = "bomb tower" //change later maybe
        bombTowerLevel1.position = bombTowerGhost.position
        bombTowerLevel1.zPosition = 1 //change later for health
        bombTowerLevel1.setScale(frame.size.height/2500)
        self.addChild(bombTowerLevel1)
}

我稍后使用name这里访问它:

func turretShoot() {
    let bombTower = self.childNode(withName: "bomb tower") as! SKSpriteNode
    bombTower.zRotation = mainturret.zRotation
    }

让我明确一下,场景中可能有多个炸弹塔,因此我没有做出bomb tower全局变量.当前代码的问题在于,当我放置一个以上的炸弹塔时,该功能中的动作仅由放置的第一个炸弹塔执行.关于如何访问局部变量并使每一个炸弹塔转向的任何想法？

Answer 1

使用SKNode enumerateChildNodesWithName来设置所有节点的旋转名称:

func turretShoot() {
    self.enumerateChildNodes(withName: "bomb tower") {
        node, stop in
        if let bombTower = node as? SKSpriteNode {
            bombTower.zRotation = mainturret.zRotation
        }
    }
}